Home / 561,259,556.91-774,543,200.31-310,380,924.65

Finding the Fourth Proportional to 561,259,556.91, 774,543,200.31 and 310,380,924.65

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Solution

The fourth proportional to 561,259,556.91, 774,543,200.31 and 310,380,924.65 is: 428,328,447.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,259,556.91 : 774,543,200.31 = 310,380,924.65 : x
  2. Step 2: Convert to fraction form
    561,259,556.91/774,543,200.31 = 310,380,924.65/x
  3. Step 3: Cross multiply
    561,259,556.91x = 774,543,200.31 × 310,380,924.65
  4. Step 4: Simplify right side
    561,259,556.91x = 240,403,434,689,715,232
  5. Step 5: Solve for x
    x = 240,403,434,689,715,232/561,259,556.91
  6. Step 6: Final answer
    x = 428,328,447.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.